Export Sales for April 1-7, 2022   Wheat:  Net sales of 96,100 metric tons (MT) for 2021/2022 were down 39 percent from the previous week and 30 percent from the prior 4-week average.  Corn:  Net sales of 1,332,900 MT for 2021/2022 were up 70 percent from the previous week and 26 percent from the prior 4-week average.  Soybeans:  Net sales of 548,900 MT for 2021/2022 were down 31 percent from the previous week and 41 percent from the prior 4-week average.    Soybean Cake and Meal:  Net sales of 174,900 MT for 2021/2022 were up noticeably from the previous week and up 21 percent from the prior 4-week average.  Soybean Oil:  Net sales of 6,100 MT for 2021/2022 were down 2 percen...